[6a3a178] | 1 | /** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
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| 2 | import * as tslib_1 from "tslib";
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| 3 | import { Subscriber } from '../Subscriber';
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| 4 | export function refCount() {
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| 5 | return function refCountOperatorFunction(source) {
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| 6 | return source.lift(new RefCountOperator(source));
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| 7 | };
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| 8 | }
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| 9 | var RefCountOperator = /*@__PURE__*/ (function () {
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| 10 | function RefCountOperator(connectable) {
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| 11 | this.connectable = connectable;
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| 12 | }
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| 13 | RefCountOperator.prototype.call = function (subscriber, source) {
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| 14 | var connectable = this.connectable;
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| 15 | connectable._refCount++;
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| 16 | var refCounter = new RefCountSubscriber(subscriber, connectable);
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| 17 | var subscription = source.subscribe(refCounter);
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| 18 | if (!refCounter.closed) {
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| 19 | refCounter.connection = connectable.connect();
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| 20 | }
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| 21 | return subscription;
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| 22 | };
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| 23 | return RefCountOperator;
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| 24 | }());
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| 25 | var RefCountSubscriber = /*@__PURE__*/ (function (_super) {
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| 26 | tslib_1.__extends(RefCountSubscriber, _super);
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| 27 | function RefCountSubscriber(destination, connectable) {
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| 28 | var _this = _super.call(this, destination) || this;
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| 29 | _this.connectable = connectable;
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| 30 | return _this;
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| 31 | }
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| 32 | RefCountSubscriber.prototype._unsubscribe = function () {
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| 33 | var connectable = this.connectable;
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| 34 | if (!connectable) {
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| 35 | this.connection = null;
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| 36 | return;
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| 37 | }
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| 38 | this.connectable = null;
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| 39 | var refCount = connectable._refCount;
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| 40 | if (refCount <= 0) {
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| 41 | this.connection = null;
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| 42 | return;
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| 43 | }
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| 44 | connectable._refCount = refCount - 1;
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| 45 | if (refCount > 1) {
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| 46 | this.connection = null;
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| 47 | return;
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| 48 | }
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| 49 | var connection = this.connection;
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| 50 | var sharedConnection = connectable._connection;
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| 51 | this.connection = null;
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| 52 | if (sharedConnection && (!connection || sharedConnection === connection)) {
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| 53 | sharedConnection.unsubscribe();
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| 54 | }
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| 55 | };
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| 56 | return RefCountSubscriber;
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| 57 | }(Subscriber));
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| 58 | //# sourceMappingURL=refCount.js.map
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